/*
 * MIT License
 *
 * Copyright (c) 2023 北京凯特伟业科技有限公司
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.je.bpm.engine.impl;

import com.je.bpm.engine.impl.interceptor.Command;
import com.je.bpm.engine.impl.interceptor.CommandContext;
import com.je.bpm.engine.impl.interceptor.CommandExecutor;
import com.je.bpm.engine.management.TablePage;
import com.je.bpm.engine.management.TablePageQuery;

import java.io.Serializable;


public class TablePageQueryImpl implements TablePageQuery, Command<TablePage>, Serializable {

    private static final long serialVersionUID = 1L;

    transient CommandExecutor commandExecutor;

    protected String tableName;
    protected String order;
    protected int firstResult;
    protected int maxResults;

    public TablePageQueryImpl() {
    }

    public TablePageQueryImpl(CommandExecutor commandExecutor) {
        this.commandExecutor = commandExecutor;
    }

    @Override
    public TablePageQueryImpl tableName(String tableName) {
        this.tableName = tableName;
        return this;
    }

    @Override
    public TablePageQueryImpl orderAsc(String column) {
        addOrder(column, AbstractQuery.SORTORDER_ASC);
        return this;
    }

    @Override
    public TablePageQueryImpl orderDesc(String column) {
        addOrder(column, AbstractQuery.SORTORDER_DESC);
        return this;
    }

    public String getTableName() {
        return tableName;
    }

    protected void addOrder(String column, String sortOrder) {
        if (order == null) {
            order = "";
        } else {
            order = order + ", ";
        }
        order = order + column + " " + sortOrder;
    }

    @Override
    public TablePage listPage(int firstResult, int maxResults) {
        this.firstResult = firstResult;
        this.maxResults = maxResults;
        return commandExecutor.execute(this);
    }

    @Override
    public TablePage execute(CommandContext commandContext) {
        return commandContext.getTableDataManager().getTablePage(this, firstResult, maxResults);
    }

    public String getOrder() {
        return order;
    }

}
